In the feeding area of the card it is of particular importance to feed the fibers consistently and in a controlled way. The video shows a feeding system with a conventional feed plate, a feed roller and a taker-in roller.

Most commonly, the feed roller is equipped with coarse metallic card clothing. The tooth direction of the feed roller prevents the taker-in roller from pulling fiber tufts out of the fiber mat.

As shown in the video, the feed roller draws the fiber mat into the card, while at the same time defining the output of the card. The lower the speed of the feed roller, the smaller is the amount of fibers in the card, while a higher speed means that more fibers are fed to the card.

With the back of its teeth, the card clothing of the feed roller guides the fibers along the feed plate. The sharp angle of the card clothing serves to control the fibers in the best possible way and prevent the taker-in roller from taking over the material too soon as this could produce an irregular fiber web.

The geometry of the card clothing of the feed roller must be selected in a way that the fiber mat is reliably condensed and drawn in without slipping off the roller.

The taker-in roller shown in the video is running at a higher speed to disentangle the fiber tufts compressed by the feed roller and feed them to the further steps of the carding process in a controlled way.

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